Pith Number

pith:5AEYO4YH

pith:2026:5AEYO4YHROW2YXVDM7TN5I5UXR

not attested not anchored not stored refs pending

HCO$^+$ and the Effect of Mixing in SN 1987A

A. M. S. Richards (Manchester), Cardiff, C. Fransson (Stockholm University), F. D. Priestley (Cardiff), H. L. Gomez (Cardiff), H. M. Davies, J. Larsson (KTH Royal Institute of Technology), Maynooth University), M. J. Barlow (UCL), M. Matsuura, National Radio Astronomy Observatory), P. Cigan (George Mason University, R. Indebetouw (University of Virginia, R. Wesson (UCL, United States Naval Observatory)

arxiv:2607.26189 v1 · 2026-07-28 · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5AEYO4YHROW2YXVDM7TN5I5UXR}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-30T00:08:40.682600Z
Builder	pith-number-builder-2026-05-17-v1
Signature	unsigned_v0
Schema	pith-number/v1.0

Canonical hash

e8098773078badac5ea367e6dea3b4bc483a38c1d679a6f6cf8f1057335b1424

Aliases

arxiv: 2607.26189 · arxiv_version: 2607.26189v1 · doi: 10.48550/arxiv.2607.26189 · pith_short_12: 5AEYO4YHROW2 · pith_short_16: 5AEYO4YHROW2YXVD · pith_short_8: 5AEYO4YH

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/5AEYO4YHROW2YXVDM7TN5I5UXR \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: e8098773078badac5ea367e6dea3b4bc483a38c1d679a6f6cf8f1057335b1424

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ab67cb74f0056b3ee97b9f9b9d3a077cbe4ba61409b22650d60cf69def912c66",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2026-07-28T18:49:25Z",
    "title_canon_sha256": "18de9e951ab1a8370e67a4d4f49b51c1d77b19087d3e63e6f6feaf4c7f80ef77"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.26189",
    "kind": "arxiv",
    "version": 1
  }
}